<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        .box {
            width: 200px;
            height: 100px;
            text-align: center;
            font-size: 45px;
            background-color: salmon;
            color: #fff;
            text-shadow: 1px 1px black, 2px 2px black,
                3px 3px black, 4px 4px black,
                5px 5px black, 6px 6px black,
                7px 7px black, 8px 8px black;
        }
    </style>
</head>

<body>
    <div class="box">
        css3d
    </div>
</body>

</html>